Adding note on ffmpeg + fix for faster whisper on macOS

README.md

@@ -22,6 +22,9 @@ OpenAI's [Whisper](https://github.com/openai/whisper).
 
 **PyPI**:
 
+Install [ffmpeg](https://www.ffmpeg.org/download.html)
+
+Install Buzz
 ```shell
 pip install buzz-captions
 python -m buzz

buzz/transcriber/recording_transcriber.py

@@ -8,9 +8,10 @@
 from typing import Optional
 from platformdirs import user_cache_dir
 
-import torch
 import numpy as np
 import sounddevice
+import whisper
+import faster_whisper
 from sounddevice import PortAudioError
 from openai import OpenAI
 from PyQt6.QtCore import QObject, pyqtSignal
@@ -22,8 +23,7 @@
 from buzz.transcriber.whisper_cpp import WhisperCpp, whisper_cpp_params
 from buzz.transformers_whisper import TransformersWhisper
 
-import whisper
-import faster_whisper
+import torch  # torch has to be imported after faster_whisper to prevent 'libiomp5.dylib' error
 
 
 class RecordingTranscriber(QObject):

buzz/transcriber/whisper_file_transcriber.py

@@ -5,14 +5,18 @@
 import re
 import os
 import sys
-import torch
 import platform
 from platformdirs import user_cache_dir
 from multiprocessing.connection import Connection
 from threading import Thread
 from typing import Optional, List
 
 import tqdm
+import faster_whisper
+import whisper
+import stable_whisper
+from stable_whisper import WhisperResult
+
 from PyQt6.QtCore import QObject
 
 from buzz.conn import pipe_stderr
@@ -21,10 +25,7 @@
 from buzz.transcriber.file_transcriber import FileTranscriber
 from buzz.transcriber.transcriber import FileTranscriptionTask, Segment
 
-import faster_whisper
-import whisper
-import stable_whisper
-from stable_whisper import WhisperResult
+import torch  # torch has to be imported after faster_whisper to prevent 'libiomp5.dylib' error
 
 PROGRESS_REGEX = re.compile(r"\d+(\.\d+)?%")